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1、 新版广州英语七年级下册新版广州英语七年级下册 Unit 6 讲解与练习讲解与练习一、一、Unit 5 重点单词和短语复习重点单词和短语复习1、重点单词_ 滴 _ 旅行 _ 数量_ 实验 _ 淡的 _ _ 盐_ _使用中 _ _嗓音 _ _水库 _ 水库_ 增加_ 化学口 _ 通过_ 管道_ 宝贵的_ 有点_ 银行_ 找给的零钱_ 归还_ 蒸气_ 形成_ 搅拌_ 继续 _ 结晶体2、重点短语_ _ 关掉 _ _ 把.加入._ _ 有点 _ _ .的一部分_ _ 零花钱_ _ 由.组成_ _干涸二、二、Unit 6 重点单词和短语考查重点单词和短语考查1、重点单词_ 电 _ 谈话 _ 确认_ 规
2、则 _ 任何人 _ _ 回答_ _愚蠢的 _ _电线 _ _使连接 _电缆_瞬间_ _ 电池 _ 厨灶_ _ 冰箱_ _ 电灯泡_ 锁上_ 测试_ _ 使整洁_ 触碰2、重点短语_ _ 一袋 _ _ 在某种程度上_ _ 连接到 _ _ 发电站_ _ 洗衣机_ _ 关（电灯、电器等）_ _收拾妥 _ _ 空调Exercise:一、选择适当的词组完成句子。如有必要，须改变单词的形式。每个词组仅使用一次。a packet of, in bags, power station, in a way, be connected to, a moment later, look foolish, here
3、you are1. Computers can printers and we can print data easily.2. Nowadays, people usually buy rice at supermarkets. 3. , Ill be glad when they all leave home.4. You in that dress. It doesnt fit you at all.5. May I have some eight-jiao stamps?Ok. .6. A water must have a dam. (大坝)7. Lisa, can you buy
4、me sweets on your way home?8. , the doctor went on, “ Well, boy, you dont have a fever now.”二、根据首字母和句意，填写单词。1. Dont t . Its dangerous.2. Remember to l the door when you leave.3. The teacher asked Peter a very simple question but there was no r .4. Can you wait for me for a m ? I have a phone call to
5、 answer.5. This was just a private c between you and me. Dont tell others, please.三、三、情态动词情态动词情态动词有具体的词义，需要与其他动词一起使用，表示说话人对有关行为或事物的态度或看法。表示可能、怀疑、允诺、愿望、义务、必要、猜测等的动词是情态动词。情态动词没有人称和数的变化，情态动词后必须跟动词原形。1、can 和 cant( cannot)（1）表示能力、许可、可能性。表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力。如：She can swim fast, but I cant . 她能
6、游得很快，但我不能。I can see with my eyes.我用眼睛看。cant(cannot)意为“不会，不能，不可以”，还有“不可能”之意。（2）表示许可。如：You can use my dictionary. 你可以用我的字典。（3）.表示推测，意为“可能”，常用于否定句和疑问句中，此时 cant（cannot）译为“不可能”。如：Can it be our teacher? 那个人有可能是我们老师吗？No, it cant be our teacher. He is on a visit to the Great Wall.不可能。咱们老师正在游览长城呢。Exercise:用
7、can 或 cant( cannot)完成下面的句子。1. A baby run. 2. Dogs understand simple orders. 3. John practices running every day, so he run very fast. 4. Camels live in hot areas. 5. You pass the test if you dont work hard.2.may 和和 may not(1) 表示请求、许可，比 can 正式。如：May I borrow your bike? 我可以借你的自行车吗？You may go home now.
8、 现在你可以回家了。Exercise:_ I borrow your MP3?Sure . Here you are. A. May B. Should C. Must D. Would(2) 表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。如：It may rain tomorrow . 明天可能会下雨。She may be at home. 她可能在家呢.3、must 和和 must not(1).must 意为“必须、一定”。如：You must stay here until I come back. 在我回来之前你必须呆在这儿。(2)其否定形式 mustnt 表示“一定不
9、要” “千万别” “禁止,不许”.如：You mustnt play with fire. 你不许玩火。You mustnt be late. 你一定不要迟到。（3）对 must 引导的疑问句，肯定回答为 must，否定回答为 neednt 或 dont have to .如： Must I finish my homework? 我现在必须完成作业吗？No, you neednt. 不，你不必。(4)must 表示有把握的推测，用于肯定句。如: The light is on, so he must be at home now.灯亮着，他现在肯定在家。I think Miss Gao mu
10、st be in the library. She said she would go there.No. She _be there, I have just been there. A. cant B.mustnt C. neednt D. wouldnt四、课堂练习四、课堂练习（一）用 must, mustnt, may, may not, can, cant 填空This is Mrs Lees first trip to Canada. She only speak a little French and a little English. Today, she will go th
11、e Canadian Embassy （大使馆）to get visas（签证） for the family. She knows she forget to take all the familys passports （护照） with her or they will not get visas. She get there before the embassy closes.Dean has just bought three pairs of skis (滑雪板). He is trying, but he carry them all at the same time. He wants to take a taxi home, but the taxis wont stop for him. He find a taxi queue(队) if he wants a taxi.（二）选择适当的单词完成句子。如有必要，须改变单词的形式。每个单词仅使用一次。electricity, conversation, identify, rule, anyone, reply, foolish, wire, connect, cable, moment, bat
